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Finding the Fourth Proportional to 340,751.80, 511,127.70 and 163,167.40

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Solution

The fourth proportional to 340,751.80, 511,127.70 and 163,167.40 is: 244,751.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,751.80 : 511,127.70 = 163,167.40 : x
  2. Step 2: Convert to fraction form
    340,751.80/511,127.70 = 163,167.40/x
  3. Step 3: Cross multiply
    340,751.80x = 511,127.70 × 163,167.40
  4. Step 4: Simplify right side
    340,751.80x = 83,399,377,876.98
  5. Step 5: Solve for x
    x = 83,399,377,876.98/340,751.80
  6. Step 6: Final answer
    x = 244,751.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.